PQWT Underground Water Leak Detectors for Home PQ125A Wall Sound Intensifier
By detecting resonance amplitude changes between leak sounds and this specific frequency, it effectively captures leak noises inaudible to the human ear. Unlike basic leak sound amplifiers, it employs professional gain filters that reduce noise while detecting leaks.
Swann Square Flashing Light 4K Replacement/add on Security Camera SWPRO-4KRQ
The Swann Square Flashing Light 4K Replacement/add on Security Camera SWPRO-4KRQ is a high-quality security camera designed for both indoor and outdoor use. It features 4K resolution for clear video capture, night color low light technology for enhanced visibility, and Wi-Fi connectivity for easy monitoring. With a weather-resistant design and wall-mounting capability, this camera provides reliable surveillance coverage for your home or business. The app-controlled camera includes an HDMI output and supports motion-only alert notifications, making it a convenient and effective addition to your existing security system.
PRO1080MSD 2 Pack Add-On DVR Dome Cameras 1080p Full HD Video New Free Shipping
1080P Bullet Security Camera 2MP 4 in 1 TVI/CVI/AHD/CVBS Analog CCTV Wired Su…
It can work with TVI DVR, CVI DVR, AHD DVR, and analog DVR. The Default Video output is 1080P AHD Mode, compatible with all DVRs by switching to video output mode. It has a 2.8mm Fixed lens with 102 degrees wide Field of View (FOV) to cover large areas.
Continuous Beep Alarm Electronic Piezo Buzzer Sounder DC 3-24V 85DB 2Pcs
Decibel : 85DB;Min. Sound Pressure Level : 85db at DC24V/60CM;Resonant Frequency : 2.9+/-0.5KHZ. : QSI-4310;Sound-making Type : Continuous Sound Beep.
25PCS Buzzer DC 3-12V Wired Connector Active Electronic Buzzer 85dB
HJT 5MP POE Explosion Proof Camera, 304 Stainless Ste
Due to the 18 infrared LEDs, you can get a very clear view at a long distance up to 30m,even in low light conditions.
2 PCS Piezo Buzzer, Icstation Buzzer Alarm 12V Electronic Beep Buzzer 100dB P…
Sound Output: 100dB at 12V DC 30cm. Sound Output: 100dB at 12V DC 30cm, Response Frequency: 3000±500Hz, these buzzers are very loud which are not used indoors, them could be used outdoors, such as traffic, factory, etc.
2 PCS Piezo Buzzer, Icstation Buzzer Alarm 12V Electronic Beep Buzzer 100dB P…
Sound Output: 100dB at 12V DC 30cm. Sound Output: 100dB at 12V DC 30cm, Response Frequency: 3000±500Hz, these buzzers are very loud which are not used indoors, them could be used outdoors, such as traffic, factory, etc.